The one anastomosis gastric bypass is also called the mini gastric bypass or single anastomosis gastric bypass.

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This involves the creation of a new stomach (from your original stomach) and joining a loop of small bowel to the new stomach. Food and fluid bypass the original stomach and part of the small bowel.

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Weight loss occurs due to a restriction in oral intake, malabsorption of nutrients, and alterations to the actions of gut hormones on the bowel.

Revisional Surgery

If you have had previous weight loss surgery and developed a complication, revisional surgery may be an option. 

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The type of revision will be depended on your previous surgery and the problem you present with including the need to have a number of investigations to help identify any problems which can be fixed with surgery.  

Costs will be dependent on difficulty of the revision.